The Men's R1 Air Crew is a versatile midlayer built for high-output mountain pursuits when packability and breathability matter as much as warmth. Patagonia's R1 Air fabric combines the insulating comfort of a fleece with a lighter, more compressible construction that moves with you on technical terrain.
Breathable grid-back fleece regulates temperature during aerobic activity
Crew neck design layers easily under shells and harnesses
Raglan sleeves and stretchy construction allow unrestricted movement
Lightweight build packs down small in your summit pack
Offset shoulder seams sit comfortably under pack straps
Flat-seam construction reduces chafing on long days
Designed for climbers, alpinists and backcountry skiers who need reliable warmth without bulk during dawn patrols and high-altitude pushes.
